About

The TETCO product line was founded in 1977. And the makers of TETCO products have always been dedicated to the geothermal concept. It has been their only business. In the 1990s TETCO, Inc., was purchased by the family owned Edwards Engineering Corporation and acquired this outstanding product line. After 2003, Chiller Solutions LLC - a manufacture of HVAC & process chillers -and the original owners of TETCO, acquired all the assets of Edwards Engineering, and thus reacquired the Geothermal Heat Pump Line.

TETCO was acquired by Enertech Manufacturing LLC in July 2009. Units will now be produced in Enertech's state-of-the-art production facility in Mitchell, South Dakota.

Greenville, IL

Enertech's corporate offices, including our Geothermal University training center and research and development facilities, are located in the heart of the Midwest. Small town values are more than just where we live. It's how we do business.

EnertechCorporate Headquarters
2506 S Elm Street
Greenville, IL 62246

Mitchell, SD

Exceptionally good people proudly produce all TETCO geothermal equipment at Enertech's manufacturing facility in Mitchell, South Dakota.

EnertechManufacturing Facility
5751 Airport Rd
Mitchell, SD 57301

Enertech Global, LLC, produces TETCO geothermal systems. Enertech is a small, closely held company doing big things. The company's sole focus is on making the best geothermal heating and cooling equipment possible. For them, this means a relentless focus on quality, innovation and ensuring the dealers and installers of our equipment have the best training available. For you, this means quality you can trust, technology you can rely on, and accountability to you, the homeowner, instead of shareholders.